Hi there @gseveri07!
Anker is not, yet, such a big company able to develop all their ideas at once without external money input. It's not an uncommon behaviour. Peeble - rest in peace - used Kickstarter for their second edition even after the first one was a tremendous success. Bose, a big company, is using Kickstarter right now for a side-project.
The thing with Kickstarter is that it is simultaneously a funding and a marketing platform. Given that you advertise your product well, you can measure with quite a degree of confidence how interesting a product is to the market. If your product don't get enough funding, it probably means that there's no real interest. If your product gets funded within hours of launch and surpasses your initial assessments, it means there's potential market for it.
I don't work for Anker, but my guess is that they used Kickstarter as a funding/marketing platform for a "pet project", in this case the Liberty+, while developing a simpler version of the same product, one that already had potential market. Think of it in terms of asking yourself a question such as this: "I have this product. I could go further into its development to add this, this, and this improvement would cost me XX while the price of the product would go to YY. But I'm not sure if the market would pay for those improvements. How could I test it?" And the answer is a Kickstart campaign.
As for "shipping within the promised time", well, most Kickstart campaigns meet roadblocks in production. It is important to stress that the language used in Kickstarter campaigns - I believe it's standard from the platform - is "predicted shipment". Projects change along the way, all the time. If you even back a Kickstarter campaign it is important that you know what kind of game you are entering.
That said, they did started shipping within their predicted time of October 2017. The First Batch backers units were shipped. But, again, let's mind the language. Shipping and delivering are two separate things. I have no idea how the logistics goes to ship from a manufacturing facility in China to India, which is just across the border, let alone to other continents. To keep costs down, companies such as Anker rely on bundling shipments, both with other products they manufacture and with products from other companies - much like it is cheaper for you to fly with an airline because they bundle a bunch of people in the same place, instead of you charting a plane for yourself. The trade-off is that you don't get to choose your date and time of flight, you have to pick what the airline has available. So does Anker - and every other company for that matter. As a Kickstarter backer, you trade off paying a smaller price and receiving the product before everyone else for a little waiting time. It's a fair trade.
I'm a Liberty+ backer. So far, compared to other projects I've backed, they are doing an excellent job. They communicate and answer questions, and they are open about what's going on. They even addressed the very subject you pointed out in their latest campaign update.
Let's all have a little patience. Our Liberty+ will arrive soon enough.